GB2414556B - Sonar transmitter - Google Patents

Sonar transmitter

Info

Publication number
GB2414556B
GB2414556B GB0510577A GB0510577A GB2414556B GB 2414556 B GB2414556 B GB 2414556B GB 0510577 A GB0510577 A GB 0510577A GB 0510577 A GB0510577 A GB 0510577A GB 2414556 B GB2414556 B GB 2414556B
Authority
GB
United Kingdom
Prior art keywords
sonar transmitter
sonar
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB0510577A
Other versions
GB0510577D0 (en
GB2414556A (en
Inventor
Koutarou Tsubota
Yutaka Tsubura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0510577D0 publication Critical patent/GB0510577D0/en
Publication of GB2414556A publication Critical patent/GB2414556A/en
Application granted granted Critical
Publication of GB2414556B publication Critical patent/GB2414556B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/524—Transmitters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/541—Transformer coupled at the output of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB0510577A 2004-05-24 2005-05-24 Sonar transmitter Active GB2414556B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004153090A JP4411136B2 (en) 2004-05-24 2004-05-24 Sonar transmitter

Publications (3)

Publication Number Publication Date
GB0510577D0 GB0510577D0 (en) 2005-06-29
GB2414556A GB2414556A (en) 2005-11-30
GB2414556B true GB2414556B (en) 2007-12-19

Family

ID=34836619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0510577A Active GB2414556B (en) 2004-05-24 2005-05-24 Sonar transmitter

Country Status (4)

Country Link
US (1) US7158447B2 (en)
JP (1) JP4411136B2 (en)
CA (1) CA2508156C (en)
GB (1) GB2414556B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100728041B1 (en) * 2006-06-23 2007-06-14 삼성전자주식회사 Audio system and method for storing and reproducing digital pulse width modulation signal
GB2497744A (en) 2011-12-19 2013-06-26 Acoustic Data Ltd Acoustic telemetry system using internal capacitance an energy store
JP6242130B2 (en) * 2013-09-18 2017-12-06 株式会社日立製作所 Ultrasonic transmission apparatus and ultrasonic transmission method
CN104267391A (en) * 2014-09-12 2015-01-07 海鹰企业集团有限责任公司 Sonar PMW transmitting circuit
CN106850081A (en) * 2017-02-28 2017-06-13 深圳市欧唯科技有限公司 A kind of electronic name card exchange method and system
CN112821961B (en) * 2020-12-29 2022-07-12 西安交通大学 Underwater electric field communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10285123A (en) * 1997-04-09 1998-10-23 Nec Corp Underwater communication equipment
GB2402484A (en) * 2003-06-03 2004-12-08 Furuno Electric Co Driving signals for ultrasonic scanning sonar transmitter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900823A (en) * 1973-03-28 1975-08-19 Nathan O Sokal Amplifying and processing apparatus for modulated carrier signals
JP3463169B2 (en) 1993-12-17 2003-11-05 株式会社日立製作所 Power converter
JPH09149658A (en) 1995-11-24 1997-06-06 Hitachi Ltd Series multiplex inverter
JP2002064983A (en) 2000-08-17 2002-02-28 Ad Main Inc Power supply voltage fluctuation canceling pwm circuit
JP2002325460A (en) 2001-04-26 2002-11-08 Sony Corp Method/device for modulation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10285123A (en) * 1997-04-09 1998-10-23 Nec Corp Underwater communication equipment
GB2402484A (en) * 2003-06-03 2004-12-08 Furuno Electric Co Driving signals for ultrasonic scanning sonar transmitter

Also Published As

Publication number Publication date
JP4411136B2 (en) 2010-02-10
US7158447B2 (en) 2007-01-02
CA2508156C (en) 2009-03-24
GB0510577D0 (en) 2005-06-29
US20060077760A1 (en) 2006-04-13
GB2414556A (en) 2005-11-30
JP2005340906A (en) 2005-12-08
CA2508156A1 (en) 2005-11-24

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